lis_esolver_get_evectors(3)

🦋 NAME 🦋

lis_esolver_get_evectors — grab all the eigenvectors out of the eigensolver, bestie. Every single one. No crumbs left behind. 💅

This one lives in section 3 of the Lis Library Functions manual, and yes, she's iconic.

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✨ SYNOPSIS ✨

#include "lis.h"

LIS_INT lis_esolver_get_evectors(LIS_ESOLVER esolver, LIS_MATRIX A);

That's the whole vibe. Two arguments, one return value, zero drama. 🌈

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💖 DESCRIPTION 💖

Okay so, like, here's the tea: this function gets all the eigenvectors from the eigensolver. That's it. That's the job. It's giving "I have the answers and I'm handing them over." 🎀

No cap — you already did the solving, this is just the part where you collect your prize. 🏆

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🌸 INPUT 🌸

• esolver — The eigensolver. Like, the actual eigensolver object you've been working with. She's the main character here, obviously. 👑

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🫶 OUTPUT 🫶

• v — The matrix in the COO format which stores the eigenvectors. 🦋

Not me noticing that the OUTPUT section calls her v while the SYNOPSIS calls her A — bestie I'm literally just the messenger, I report what the page says, both names are staying. 🙈

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🎀 EXIT STATUS 🎀

The following exit values are returned:

1. 0 — The process is normally terminated. Slay. Everything worked. ✨
2. unspecified — An error occurred. 💀 Not slay. Something went sideways and, per the page, the exact value isn't specified, so don't go guessing at numbers, okay?

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⭐ NOTE ⭐

Matrix A must be created in advance with the function lis_matrix_create.

fr fr do NOT skip this step. If you roll up with an uncreated matrix, that's on you, not on the man page. The page literally warned you. 😭

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💜 SEE ALSO 💜

• lis(3)
• http://www.ssisc.org/lis/

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And that's the whole page, bestie — written up as a man page on 28 Aug 2014, from the Lis Library Functions source. Go get those eigenvectors. 👑💖